Noise Monitoring Data
CHENNAI  -  2013
Months	January		February		March		April		May		June		July		August		September		October		November		December
Stations	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night
Eye Hospital (S)	63	50	63	50	62	55	66	58	61	53	64	53	65	53	65	54	65	55	65	53	65	53	65	52
Standard Limit in Leq dB(A):
Day 50, Night 40
Guindy (I)	75	71	75	72	76	71	76	71	76	71	76	72	76	72	75	72	75	70	73	68	74	68	74	69
Standard Limit in Leq dB(A):
Day 75, Night 70
Perambur (C)	68	57	69	57	68	57	69	58	68	58	68	57	69	58	68	59	68	57	68	58	68	57	68	57
Standard Limit in Leq dB(A):
Day 65, Night 55
T Nagar (C)	73	62	73	62	73	62	73	62	73	63	73	64	74	65	74	67	74	66	74	66	75	65	76	67
Standard Limit in Leq dB(A):
Day 65, Night 55
Triplicane (R)	68	57	68	56	68	55	67	55	67	57	68	57	68	56	68	56	67	56	67	56	68	56	68	57
Standard Limit in Leq dB(A):
Day 55, Night 45